Medium Voltage Calculations 4+

Medium voltage installations

Angel Martinez

Designed for iPad

    • Free
    • Offers In-App Purchases

Screenshots

Description

The most complete tool to support the calculation of high voltage electrical installations.

Free sections:
- Determination of the characteristics of the equipment: rated voltage (Ur), withstand at industrial frequency (Ud), withstand type of lightning (Up), short-term current (Ik)
- Sizing of low and medium voltage insulated cables (≤ 30 kV)
- Calculation criteria for admissible current, voltage drop, short circuit and protection, consideration of different factors for reducing the admissible current: temperature, thermal resistivity of the ground, grouping, sun exposure, etc.
- Multiple installation methods: tray, buried, under pipe, in the air ...
- Visualization of protection relay trip curve and MV cable admissible current
- Protection with transformer limiting fuses
- Earth fault current calculation (isolated neutral and earth)
- PE conductor
- Transformer performance and voltage drop
- Primary/secondary conversions in voltage and current transformers
- Secondary voltage of a transformer acoording to switch position
- Calculation of the transformation center ventilation needs
- Five safety rules
- Consult ANSI codes electrical protections
- Tray sizing
- Representation of 1 IEC curve
- Parameter configuration
Voltages, frequency, conductivity of the conductor material, temperature
MV specific: list type, cable bundle (flat / staggered)
Regulation of LV protections
- Possibility of sharing results

Purchases In-App:
- Calculation of short circuits and impedances with the maximum and minimum values, type diagram with the following configuration: Network, Transformer, MV line, LV line
- Selection of voltage and current transformers (protection and measurement), capacitor bank of the transformer, calculation of the number of insulators
- Protection and adjustment of the transformer overcurrent relay, selectivity with low voltage switch (Ir, Isd, Ii), graph of the actuation curves and identification of characteristic points
- Calculation of medium voltage line (short line model, single circuit) with conductors: AL1 / ST1A (LA), AL1 / S20SA (LARL), AL3 / ST1A (DA), AL3 (D)
- Dimensioning and checking of protective and service grounding installation, system configuration, calculation of Howe parameters, step and contact voltages, distance between grounding, single grounding, additional safety measures and results checking
- Representation of up to 3 IEC curves with different voltage levels
- Removal of ads with any purchase made

IN NO CASE SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT OR INDIRECT DAMAGES AS A RESULT OF THE CORRECT OR INCORRECT USE OF THE APPLICATION














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What’s New

Version 1.5.0

* Minor fixes

App Privacy

The developer, Angel Martinez, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

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